Yes, they have been, several times. But don't worry, we all had to see them the first time.Yes it is. Apart from the Bangkok incident covered above doing abut $100m-plus of aircraft damage, there have been others, eg:

http://aviation-safety.net/database/1960/600824-1.htm

which is not to say that QF is not a throughly competently run airline. There are plenty of operators who have never lost an airframe at all. Most of the UK holiday airlines, for example. It's partly (not entirely, of course) down to chance factors outside the airline's control.